Hey guys been trying this question for a while now and i just can't seem to find any equations which link the two coils to find average EMF and also the final current I2. Im new to electrical so still learning any help is much appreciated, thanks! Two coils, A and B, are wound on the same ferromagnetic core. There are 800 turns on A and 2800 turns on B. A current of 4 A through coil A produces a flux of 1500 μWb in the core. If this current is reversed in 30 ms, calculate the average EMFs induced in coils A and B. Relevant equations M=N2*(Flux2)/I1=N1*(Flux1)/I2 So for I've calculated M to be 1.05 mH and L to be 0.3 (not sure what units) but I don't think its right!